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What happens to the crystals of washing ...

What happens to the crystals of washing soda when exposed to air ?

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Washing soda undergoes efflorescence and as a result loss nine molecules of water to from white powder.
`underset(("white crystals"))underset("Washing soda")(Na_(2)CO_(3).10H_(2)O)overset(("Air"))tounderset(("white powder"))underset("Washing powder")(NaCO_(3).H_(2)O)+9H_(2)O`
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DINESH PUBLICATION-ACIDS, BASES AND SALTS -SHORT ANSWER QUESTIONS
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